<!DOCTYPE html>
<html>
<head>
<style>
@font-face {
    font-family: "AhemErroneousMonospace";
    src: url("resources/AhemErroneousMonospace.ttf") format("truetype");
}
</style>
</head>
<body>
The test passes if there is no red shown below.
<div><span style="font: 50px 'AhemErroneousMonospace'; background: red; -webkit-font-smoothing: none;">aaaa</span></div>
</body>
</html>